I want to protect my iPhoto library by uploading it to an offsite location via the internet and keeping it up to date there. The problem is it is a single 20 GB file, I don't want every import or edit to result in another 20 GB upload to the server. Any suggestions?

3 Answers
3

Any backup system that knows about Macs and HFS+ should be able to work with the iPhoto Library "file" to do incremental backups.

As others have already noted, it isn't actually a single file. It's a package, much like most of your applications, which just appears in the Finder as a file for convenience -- my guess is because in earlier versions of iPhoto people kept moving files inside the library around and them complained when iPhoto broke.